The classes here are only for convenience of porting from KDE 3 to KDE 4 Platform. They are not supposed to be used for a long time. You should move on to replacement classes provided by the framework or implement something yourself in the long run.

All KDE Applications use this library to provide basic functionality such as the configuration system, IPC, internationalization and locale support, site-independent access to the filesystem and a large number of other (but no less important) things. The classes in this library does not require linkage to QtGui or any other library that requires a graphical interface.

This library provides the component based on the KDE parts framework that can be used to embed a fully-fledged HTML browser widget in any KDE Application. This library uses the KHTML Web Content Rendering Engine to rendering.

This library implements almost all the file management functions you will ever need. In fact, the KDE file manager, Konqueror also uses this to provide its network-enabled file management. This library also implements the KDE file selector widget.